familyOnagraceae
subfamilyOnagraceae subfam. Onagroideae
tribeOnagraceae tribe Onagreae
genusOenothera
sectionOenothera sect. Anogra
speciesOenothera californica
subspeciesOenothera californica subsp. eurekensis

Oenothera californica subsp. eurekensis

(Munz & J. C. Roos) W. M. Klein

Aliso 5: 179. 1962.

Warren L. Wagner
Common names: Eureka Dunes evening primrose
Basionym: Oenothera deltoides subsp. eurekensis Munz & J. C. Roos Aliso 3: 118, fig. 7. 1955
Synonyms: O. avita subsp. eurekensis (Munz & J. C. Roos) W. M. Klein
Treatment appears in FNA Volume 10.

Herbs perennial, densely strig­illose and villous; with deep-seated, fleshy underground parts from underground horizontal rootstocks. Stems sprawling to decumbent, sometimes new rosettes forming at stem apex when becoming buried in drifting sand, 15–60 cm. Leaves: blade rhombic-ovate to oblanceolate, margins entire or weakly dentate. Flowers: floral-tube 25–30 mm; sepals 15–25 mm; petals 20–30 mm. Capsules 30–70 mm. 2n = 14.


Phenology: Flowering (Mar)Jun–Jul(Sep).
Habitat: Sand dunes.
Elevation: 900–1200 m.

Distribution

Calif.

Discussion

Subspecies eurekensis is known from three main areas within the Eureka Dunes system, Inyo County. It is federally listed as endangered and is in the Center for Plant Conservation’s National Collection of Endangered Plants.

Selected References

None.

Lower Taxa

None.
... more about "Oenothera californica subsp. eurekensis"
RDF feed
2n chromosome quantity
14 +
4-locular septum architecture
incomplete +
4-locular septum architecture or structure in adjective form
1-locular +
Androecium position
epigynous +
Anther fixation
versatile +
Anther some measurement
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Author
Warren L. Wagner +
Authority
(Munz & J. C. Roos) W. M. Klein +
Basal leaf arrangement
alternate +
Basal leaf position
cauline +
Basal leaf presence
absent +
Basal rosette prominence
conspicuous +
Base coloration
pale green +  and yellow usually fading orange purple pale-yellow reddish or whitish +
Base shape
pedicel-like +
Basionyms
Oenothera deltoides subsp. eurekensis +
Berry architecture or shape
nutlike +
Berry dehiscence
indehiscent +  and loculicidal +
Blade margin shape
sinuate-dentate +  and pinnatifid denticulate subentire or entire +
Blade shape
rhombic-ovate +  and oblanceolate +
Branch apex some measurement
10 cm100 mm <br />0.1 m <br /> (60 cm600 mm <br />0.6 m <br />) +
Bud orientation
nodding +
Bud shape
quadrangular +
Capsule architecture
sessile +
Capsule architecture or shape
nutlike +
Capsule architecture or structure in adjective form
4-locular +
Capsule arrangement or shape
contorted +
Capsule condition or texture
dry +
Capsule course
curved +
Capsule dehiscence
dehiscent +
Capsule length
2 cm20 mm <br />0.02 m <br /> (8 cm80 mm <br />0.08 m <br />) +
Capsule orientation
spreading +  and ascending +
Capsule quantity
1/2 +
Capsule shape
tapering +, 4-angled +  and cylindrical +
Capsule some measurement
3 cm30 mm <br />0.03 m <br /> (7 cm70 mm <br />0.07 m <br />) +
Capsule texture
woody +
Capsule width
0.2 cm2 mm <br />0.002 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
Carpel quantity
Many (?) +
Cel reproduction
vegetative +
Common name
Eureka Dunes evening primrose +
Distribution
Calif. +
Elevation
900–1200 m. +
Embryo-sac coating
oily +
Embryo-sac course
straight +
Embryo-sac presence
absent +
Embryo coating
oily +
Embryo course
straight +
Embryo presence
absent +
Endosperm coating
oily +
Endosperm course
straight +
Endosperm presence
absent +
Epidermis coloration
pink +  and white +
Epidermis relief
exfoliating +
Filament architecture
dithecal +
Filament fixation
basifixed +  and versatile +
Filament fusion
distinct +
Filament some measurement
1 cm10 mm <br />0.01 m <br /> (1.7 cm17 mm <br />0.017 m <br />) +
Floral-tube atypical some measurement
4 cm40 mm <br />0.04 m <br /> (5 cm50 mm <br />0.05 m <br />) +
Floral-tube duration
deciduous +
Floral-tube orientation
recurved +
Floral-tube presence
absent +
Floral-tube pubescence
hispid +, lanate +  and glabrous +
Floral-tube quantity
, +
Floral-tube some measurement
2.5 cm25 mm <br />0.025 m <br /> (3 cm30 mm <br />0.03 m <br />) +
Flower architecture
zygomorphic +  and actinomorphic +
Flower architecture or arrangement or growth form
solitary +
Flower odor
unscented +
Flower part duration
deciduous +
Flower part life cycle
anthesis +
Flower quantity
1 +  and several +
Flower reproduction
bisexual +
Fruit architecture
winged +
Fruit course
curved +  and straight +
Fruit dehiscence
indehiscent +  and dehiscent +
Fruit shape
4-angled +, terete +, tapering +, cylindrical +, ellipsoid +, clavate +, ovoid ellipsoid +  and cylindrical rhombic-obovoid or globose +
Habitat
Sand dunes. +
Hair height or length or size
short +
Hair position relational
interlocking +
Herb architecture
caulescent +
Herb duration
perennial +
Herb growth form
suffrutescent +
Herb pubescence
villous +
Indusium architecture
peltate +
Indusium prominence
conspicuous +
Inflorescence position
axillary +
Lateral branch height or length or size
short +
Lateral root orientation
spreading +
Leaf-axil orientation
nodding +  and erect +
Leaf architecture
simple +
Leaf arrangement
alternate +
Leaf atypical some measurement
13 cm130 mm <br />0.13 m <br /> (26 cm260 mm <br />0.26 m <br />) +
Leaf condition
later +
Leaf development
developed +
Leaf duration
deciduous +
Leaf position
cauline +
Leaf presence
absent +
Leaf some measurement
1 cm10 mm <br />0.01 m <br /> (13 cm130 mm <br />0.13 m <br />) +
Lobe arrangement or course or shape
linear +
Lobe quantity
4 (?) +
Locule arrangement or growth form
clustered +
Locule quantity
many +
Margin architecture or shape
dentate +  and entire +
Margin shape
pinnatifid +  and dentate +
Mouth condition
closing +
Nectary presence
absent +
Number of lower taxa
0 +
Ovary architecture
pedicellate +  and sessile +
Ovary architecture or structure in adjective form
1-locular +
Ovary position
inferior +
Ovule architecture
bitegmic +
Ovule arrangement or growth form
clustered +
Ovule orientation
anatropous +
Ovule quantity
1 +  and 8 +
Part location
underground +  and deep-seated +
Part texture
fleshy +
Perianth position
epigynous +
Petal arrangement
imbricate +
Petal arrangement or shape
convolute +
Petal atypical some measurement
3.5 cm35 mm <br />0.035 m <br /> (4 cm40 mm <br />0.04 m <br />) +
Petal coloration
fading pink +  and deep pink +
Petal presence
absent +
Petal quantity
4 +
Petal shape
obcordate +
Petal some measurement
2 cm20 mm <br />0.02 m <br /> (3 cm30 mm <br />0.03 m <br />) +
Petiole atypical some measurement
2 cm20 mm <br />0.02 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
Petiole some measurement
0 cm0 mm <br />0 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Phenology
Flowering (Mar)Jun–Jul(Sep). +
Pollen-grain dehiscence or orientation
longitudinal +
Pollen arrangement
singly +
Polyad arrangement
singly +
Proximal part reproduction
sterile +
Publication title
Aliso +
Publication year
1962 +
Raphide quantity
abundant +
Reference
None +
Root position
lateral +
Rootstock location
underground +
Rootstock orientation
horizontal +
Rootstock texture
fleshy +
Rosette development
developed +
Rosette length
1 cm10 mm <br />0.01 m <br /> (13 cm130 mm <br />0.13 m <br />) +
Rosette life cycle
new +
Rosette position
basal +  and cauline +
Rosette presence
absent +
Rosette width
0.5 cm5 mm <br />0.005 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Row atypical quantity
2 (4) +
Row quantity
1 +
Secretion condition
wet +
Secretion condition or texture
dry +
Secretion relief
papillate +
Secretion shape
clavate +  and globose +
Seed atypical quantity
1 (160) +
Seed coloration
purple dots +, yellowish-brown +  and black +
Seed quantity
numerous +
Seed relief
sculptured +  and smooth +
Seed shape
obovoid +
Seed size
reduced +
Seed some measurement
0.1 cm1 mm <br />0.001 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
Sepal arrangement or dehiscence
valvate +
Sepal coloration
not spotted +
Sepal duration
deciduous +
Sepal orientation
reflexed +
Sepal quantity
4 +
Sepal some measurement
1.5 cm15 mm <br />0.015 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
Septum architecture
incomplete +
Septum arrangement
parietal +, axile +  and placentation +
Septum fragility
fragile +
Septum presence
absent +
Septum width
thin +
Series length or size
longer +
Series quantity
2 +
Series size
unequal +
Series variability
equal +
Set length or size
longer +
Set quantity
2 +
Set variability
equal +
Shoot derivation
adventitious +
Shoot orientation
arising +
Shrub architecture
unarmed +
Shrub growth form
not clonal +
Shrub habitat
aquatic +, amphibious +  and terrestrial +
Slit dehiscence or orientation
longitudinal +
Spike architecture
leafy +
Stamen quantity
8 +
Stamen size
in 2 unequal series +  and subequal +
Stamen size or quantity
2 times as many or as many as sepals +
Stem apex some measurement
15 cm150 mm <br />0.15 m <br /> (60 cm600 mm <br />0.6 m <br />) +
Stem architecture
branched +
Stem growth form or orientation
sprawling +  and decumbent +
Stem orientation
decumbent +  and ascending +
Stigma architecture
peltate +
Stigma development
developing +
Stigma quantity
1 +
Stigma shape
divided +
Stipule architecture
petiolate +  and sessile +
Stipule duration
caducous +
Stipule position
intrapetiolar +
Stipule presence
absent +
Stipule size
small +
Style pubescence
pubescent +  and glabrous +
Style quantity
1 +
Style some measurement
3 cm30 mm <br />0.03 m <br /> (6 cm60 mm <br />0.06 m <br />) +
Subshrub architecture
unarmed +
Subshrub growth form
not clonal +
Subshrub habitat
aquatic +, amphibious +  and terrestrial +
Surface architecture
smooth +, reticulate +  and furrowed +
Surface architecture or pubescence or relief
smooth +
Surface architecture or shape
entire +
Surface condition
wet +
Surface duration
persisting +
Surface life cycle
anthesis +
Surface prominence
obscured +
Surface quantity
7 (?) +
Surface relief
alveolate +
Surface shape
beaded +
Synonyms
O. avita subsp. eurekensis +
Taxon family
Onagraceae +
Taxon name
Oenothera californica subsp. eurekensis +
Taxon parent
Oenothera californica +
Taxon rank
subspecies +
Tetrad arrangement
singly +
Tetrad dehiscence
3(-5)-aperturate +
Tip fusion
free +
Tip height or length or size
short +
Tip some measurement
0 cm0 mm <br />0 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
Viscin thread dehiscence or orientation
longitudinal +
Viscin thread fusion
united +
Volume
Volume 10 +
Wall texture
woody +  and hard +
Wing architecture
smooth +  and erose +
Wing condition or texture
dry +
Wing relief
papillate +
Wing width
thick +